Which mechanism explains how subduction zones contribute to long-term carbon sequestration?

💡 Explanation

When subduction occurs, organic matter from marine sediments gets buried, compressed, and transformed into sedimentary rocks because high pressure stabilizes carbon-rich compounds. Therefore, long-term sequestration results, rather than CO2 release, weathering changes, or photosynthesis increases which are unrelated mechanisms.

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• Which outcome occurs when regional dust storms deposit loess?
• Which outcome occurs when a subducting slab stagnates mid-mantle?
• Which outcome occurs when persistent offshore winds drive surface currents away from a coastline?
• Which effect results when upper-level divergence aloft reinforces surface low pressure within a Hadley cell?
• Which risk increases when construction on an alluvial fan restricts sediment flow from upstream?